Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long ve hoi snippets" » "luong va hoi snippets", "duong ve hoi snippets", "long ve thoi snippets", "long ve khoi snippets", "long le hoi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("long ve hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long ve hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long ve hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long ve hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.